祖父将他的长腿伸直，把他的大手伸进口袋。
Grampy stretched his long leg out straight and reached his huge hand deep into the pocket.
很多人不愿意这样做，他们认为伸直肘部更有利。但是我这个练习会让你喜欢长划臂并拉长体形。
A lot of people are getting away from this, for they think swimming with straight elbows is better for them, but in my case you'll like to swim for long stroke and very long body.
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